Vector meson photoproduction at high-t and comparison to HERA data

被引：41

作者：

Forshaw, JR ^{[1
]}

Poludniowski, G ^{[1
]}

机构：

[1] Univ Manchester, Dept Phys & Astron, Manchester M13 9PL, Lancs, England

来源：

EUROPEAN PHYSICAL JOURNAL C | 2003年 / 26卷 / 03期

关键词：

D O I：

10.1140/epjc/s2002-01078-1

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We explore QCD calculations for the process gammap --> VX where V is a vector meson, in the region s much greater than -t and -t much greater than Lambda(QCD)(2). We compare our calculations for the J/psi, phi and rho mesons with data from the ZEUS Collaboration at HERA and demonstrate that the BFKL approach is consistent with the data even for light mesons, whereas the two-gluon exchange approach is inadequate. We also predict the differential cross-sections for the Y and omega for which no data are currently available.

引用

页码：411 / 415

页数：5

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